1 /*
  2  * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.
  8  *
  9  * This code is distributed in the hope that it will be useful, but WITHOUT
 10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 12  * version 2 for more details (a copy is included in the LICENSE file that
 13  * accompanied this code).
 14  *
 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 18  *
 19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 20  * or visit www.oracle.com if you need additional information or have any
 21  * questions.
 22  *
 23  */
 24 
 25 #include "precompiled.hpp"
 26 #include "c1/c1_Compilation.hpp"
 27 #include "c1/c1_Compiler.hpp"
 28 #include "c1/c1_FrameMap.hpp"
 29 #include "c1/c1_GraphBuilder.hpp"
 30 #include "c1/c1_LinearScan.hpp"
 31 #include "c1/c1_MacroAssembler.hpp"
 32 #include "c1/c1_Runtime1.hpp"
 33 #include "c1/c1_ValueType.hpp"

 34 #include "compiler/compileBroker.hpp"
 35 #include "compiler/compilerDirectives.hpp"
 36 #include "interpreter/linkResolver.hpp"
 37 #include "jfr/support/jfrIntrinsics.hpp"
 38 #include "memory/allocation.hpp"
 39 #include "memory/allocation.inline.hpp"
 40 #include "memory/resourceArea.hpp"
 41 #include "runtime/interfaceSupport.inline.hpp"
 42 #include "runtime/sharedRuntime.hpp"
 43 #include "runtime/vm_version.hpp"
 44 #include "utilities/bitMap.inline.hpp"
 45 #include "utilities/macros.hpp"
 46 
 47 
 48 Compiler::Compiler() : AbstractCompiler(compiler_c1) {
 49 }
 50 
 51 void Compiler::init_c1_runtime() {
 52   BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
 53   Runtime1::initialize(buffer_blob);

 54   FrameMap::initialize();
 55   // initialize data structures
 56   ValueType::initialize();
 57   GraphBuilder::initialize();
 58   // note: to use more than one instance of LinearScan at a time this function call has to
 59   //       be moved somewhere outside of this constructor:
 60   Interval::initialize();
 61 }
 62 
 63 
 64 void Compiler::initialize() {
 65   // Buffer blob must be allocated per C1 compiler thread at startup
 66   BufferBlob* buffer_blob = init_buffer_blob();
 67 
 68   if (should_perform_init()) {
 69     if (buffer_blob == nullptr) {
 70       // When we come here we are in state 'initializing'; entire C1 compilation
 71       // can be shut down.
 72       set_state(failed);
 73     } else {
 74       init_c1_runtime();
 75       set_state(initialized);
 76     }
 77   }
 78 }
 79 
 80 uint Compiler::code_buffer_size() {
 81   return Compilation::desired_max_code_buffer_size() + Compilation::desired_max_constant_size();
 82 }
 83 
 84 BufferBlob* Compiler::init_buffer_blob() {
 85   // Allocate buffer blob once at startup since allocation for each
 86   // compilation seems to be too expensive (at least on Intel win32).
 87   assert (CompilerThread::current()->get_buffer_blob() == nullptr, "Should initialize only once");
 88 
 89   // setup CodeBuffer.  Preallocate a BufferBlob of size
 90   // NMethodSizeLimit plus some extra space for constants.
 91   BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size());
 92   if (buffer_blob != nullptr) {
 93     CompilerThread::current()->set_buffer_blob(buffer_blob);
 94   }
 95 
 96   return buffer_blob;
 97 }
 98 
 99 bool Compiler::is_intrinsic_supported(const methodHandle& method) {
100   vmIntrinsics::ID id = method->intrinsic_id();
101   assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
102 
103   if (method->is_synchronized()) {
104     // C1 does not support intrinsification of synchronized methods.
105     return false;
106   }
107   return Compiler::is_intrinsic_supported(id);
108 }
109 
110 bool Compiler::is_intrinsic_supported(vmIntrinsics::ID id) {
111   switch (id) {
112   case vmIntrinsics::_compareAndSetLong:
113     break;
114   case vmIntrinsics::_getAndAddInt:
115     if (!VM_Version::supports_atomic_getadd4()) return false;
116     break;
117   case vmIntrinsics::_getAndAddLong:
118     if (!VM_Version::supports_atomic_getadd8()) return false;
119     break;
120   case vmIntrinsics::_getAndSetInt:
121     if (!VM_Version::supports_atomic_getset4()) return false;
122     break;
123   case vmIntrinsics::_getAndSetLong:
124     if (!VM_Version::supports_atomic_getset8()) return false;
125     break;
126   case vmIntrinsics::_getAndSetReference:
127 #ifdef _LP64
128     if (!UseCompressedOops && !VM_Version::supports_atomic_getset8()) return false;
129     if (UseCompressedOops && !VM_Version::supports_atomic_getset4()) return false;
130 #else
131     if (!VM_Version::supports_atomic_getset4()) return false;
132 #endif
133     break;
134   case vmIntrinsics::_onSpinWait:
135     if (!VM_Version::supports_on_spin_wait()) return false;
136     break;
137   case vmIntrinsics::_floatToFloat16:
138   case vmIntrinsics::_float16ToFloat:
139     if (!VM_Version::supports_float16()) return false;
140     break;
141   case vmIntrinsics::_arraycopy:
142   case vmIntrinsics::_currentTimeMillis:
143   case vmIntrinsics::_nanoTime:
144   case vmIntrinsics::_Reference_get:
145     // Use the intrinsic version of Reference.get() so that the value in
146     // the referent field can be registered by the G1 pre-barrier code.
147     // Also to prevent commoning reads from this field across safepoint
148     // since GC can change its value.
149   case vmIntrinsics::_loadFence:
150   case vmIntrinsics::_storeFence:
151   case vmIntrinsics::_storeStoreFence:
152   case vmIntrinsics::_fullFence:
153   case vmIntrinsics::_floatToRawIntBits:
154   case vmIntrinsics::_intBitsToFloat:
155   case vmIntrinsics::_doubleToRawLongBits:
156   case vmIntrinsics::_longBitsToDouble:
157   case vmIntrinsics::_getClass:
158   case vmIntrinsics::_isInstance:
159   case vmIntrinsics::_isPrimitive:
160   case vmIntrinsics::_getModifiers:
161   case vmIntrinsics::_currentCarrierThread:
162   case vmIntrinsics::_currentThread:
163   case vmIntrinsics::_scopedValueCache:
164   case vmIntrinsics::_dabs:
165   case vmIntrinsics::_dsqrt:
166   case vmIntrinsics::_dsqrt_strict:
167   case vmIntrinsics::_dsin:
168   case vmIntrinsics::_dcos:
169   case vmIntrinsics::_dtan:
170   case vmIntrinsics::_dlog:
171   case vmIntrinsics::_dlog10:
172   case vmIntrinsics::_dexp:
173   case vmIntrinsics::_dpow:
174   case vmIntrinsics::_fmaD:
175   case vmIntrinsics::_fmaF:
176   case vmIntrinsics::_getReference:
177   case vmIntrinsics::_getBoolean:
178   case vmIntrinsics::_getByte:
179   case vmIntrinsics::_getShort:
180   case vmIntrinsics::_getChar:
181   case vmIntrinsics::_getInt:
182   case vmIntrinsics::_getLong:
183   case vmIntrinsics::_getFloat:
184   case vmIntrinsics::_getDouble:
185   case vmIntrinsics::_putReference:
186   case vmIntrinsics::_putBoolean:
187   case vmIntrinsics::_putByte:
188   case vmIntrinsics::_putShort:
189   case vmIntrinsics::_putChar:
190   case vmIntrinsics::_putInt:
191   case vmIntrinsics::_putLong:
192   case vmIntrinsics::_putFloat:
193   case vmIntrinsics::_putDouble:
194   case vmIntrinsics::_getReferenceVolatile:
195   case vmIntrinsics::_getBooleanVolatile:
196   case vmIntrinsics::_getByteVolatile:
197   case vmIntrinsics::_getShortVolatile:
198   case vmIntrinsics::_getCharVolatile:
199   case vmIntrinsics::_getIntVolatile:
200   case vmIntrinsics::_getLongVolatile:
201   case vmIntrinsics::_getFloatVolatile:
202   case vmIntrinsics::_getDoubleVolatile:
203   case vmIntrinsics::_putReferenceVolatile:
204   case vmIntrinsics::_putBooleanVolatile:
205   case vmIntrinsics::_putByteVolatile:
206   case vmIntrinsics::_putShortVolatile:
207   case vmIntrinsics::_putCharVolatile:
208   case vmIntrinsics::_putIntVolatile:
209   case vmIntrinsics::_putLongVolatile:
210   case vmIntrinsics::_putFloatVolatile:
211   case vmIntrinsics::_putDoubleVolatile:
212   case vmIntrinsics::_getShortUnaligned:
213   case vmIntrinsics::_getCharUnaligned:
214   case vmIntrinsics::_getIntUnaligned:
215   case vmIntrinsics::_getLongUnaligned:
216   case vmIntrinsics::_putShortUnaligned:
217   case vmIntrinsics::_putCharUnaligned:
218   case vmIntrinsics::_putIntUnaligned:
219   case vmIntrinsics::_putLongUnaligned:
220   case vmIntrinsics::_Preconditions_checkIndex:
221   case vmIntrinsics::_Preconditions_checkLongIndex:
222   case vmIntrinsics::_updateCRC32:
223   case vmIntrinsics::_updateBytesCRC32:
224   case vmIntrinsics::_updateByteBufferCRC32:
225 #if defined(S390) || defined(PPC64) || defined(AARCH64)
226   case vmIntrinsics::_updateBytesCRC32C:
227   case vmIntrinsics::_updateDirectByteBufferCRC32C:
228 #endif
229   case vmIntrinsics::_vectorizedMismatch:
230   case vmIntrinsics::_compareAndSetInt:
231   case vmIntrinsics::_compareAndSetReference:
232   case vmIntrinsics::_getCharStringU:
233   case vmIntrinsics::_putCharStringU:
234 #ifdef JFR_HAVE_INTRINSICS
235   case vmIntrinsics::_counterTime:
236 #endif
237   case vmIntrinsics::_getObjectSize:
238     break;
239   case vmIntrinsics::_blackhole:
240     break;
241   default:
242     return false; // Intrinsics not on the previous list are not available.
243   }
244 
245   return true;
246 }
247 
248 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci, bool install_code, DirectiveSet* directive) {

















249   BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
250   assert(buffer_blob != nullptr, "Must exist");
251   // invoke compilation
252   {
253     // We are nested here because we need for the destructor
254     // of Compilation to occur before we release the any
255     // competing compiler thread
256     ResourceMark rm;
257     Compilation c(this, env, method, entry_bci, buffer_blob, install_code, directive);
258   }
259 }
260 
261 
262 void Compiler::print_timers() {
263   Compilation::print_timers();
264 }
--- EOF ---